Sole-pressing machine.



E. N. PEBBLE. SOLE PRESSING MACHINE. APPLICATION FILED FBB.1,1912.

Patented Aug.25,1914.

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E. N. PREBLE. SOLE PRESSING MACHINE. APPLICATION FILED PEB.1,1912.

Patented Aug.25,191

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E. N. PEBBLE. SOLE PRESSING MACHINE. APPLIGATION FILED r2111. 1012.

1 ,108,,4;72, Patented Aug. 25, 1914.

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lnF: AORRIS PETERS? c0. PHOTO A ITrlJ UNITED STATES PATENT oEEioE.

EDWIN n. rnnniin; or nnvnnitr, MACHINERY contains; or JET...

NEW JERSEY.

to machines of this type which comprise a shoe supporting jack and. a cooperating sole pressing form. having provision for a relative movement toplace the sole of the shoe under pressure.

It is essential to the success oi:' the level- .ing operation that the pressure exerted to level the sole be regulated in accordance with the varying requirements due to differences in the size, texture and quality oi the soles. In order to obtain this regulation easily and accurately, it is desirable to provide a manually controlled mechanism which is conveniently accessible to the operator and which may be manipulated without difliculty to adjust the degree of pressure upon. the sole. The eiiiciency of the machine is further increased it some means are provided for measuring the amount of pres sure employed in different cases in. order that the machine may be quickly and easily adjusted to meet these conditions as they occur.

The object of the present invention is to provide a simple and. efficient mechanism which is conveniently accessible to the operator and which may be manipulated to regulate the pressure and. toautomatically register the amount of pressure which is applied to the sole.

With this object in view, the several features of the invention consist in certain novel features of construction, eombinatimis and arrangements of parts hereinafter dcscribed and claimed, the advantages of which will be obvious to those skilled i n the art from the following description.

In the accompanying drawings illustrating the preferred form of the invention; Figure 1 represents a side elevation of a sole pressing machine embodying" the several features of the invention intheir preil'IEiUilETTEEl,

Specification of Letters Patent.

Application filed February 1, 1912.

SOlIiE-QERESSING- hIACI-IINE.

Patented Aug. 25, 1914.

Serial No. 6%.686.

ferred forms; Fig. 2 is a detail showing upon an enlarged scale a partial trout elcvation of the sole pressing machin illustrated in Fig. 1; Fig. 3 is a section taken upon. the line 3-3 of Fig. 2 looking in the direction oi. the arrows; Fig. 4 is a detail showing a plan view partly in section of the indicating mechanism for registering the pressure exerted upon the sole.

The machine shown in the illustrated embodiininlt oi the invention is provided with a shoe supporting last indicated at 1. and a cooperating sole pressing i'orm indicated at The last 1 issccured to a horizontal slide 3 which reciprocates in guideways formed in a table 4i. The slide 3 reci n'ocated on the table l to move the jack from a position of presentation at the front oil the machine to a position oi clearance directly beneath the sole pressing form and to return the jack to its initial position after the pressing operation. The proper movements are imparted to the slide by a lever 5 pivoted at its lower end to a bracket 6 secured to the 1nachine frame and connected at its upper end" to the jack through a link 7. The lever 5 is oscillated by a latch rod 8 provided with a slot 9 in the forward end arranged to engz'ige a. laterally projecting stud upon the lever and pivotally connected. at itsrcar end to a lever 10 pivoted upon the frame of the machine, and arranged to be actuated by a path cam secured to a cum shaft 1]. The table is supported in vertical guideways formed in the frame of theinachiue and the requisite am unt oi. pressure to level the sole oi the shoe is produced by an upward move ment of the table when the last is positioned beneath its cooperating form. The table 4 is actuated automationlly during the opera tion of. the machine by mechanism comprising toggle lever 16 and a link 17 connecting the toggle with a cam secured to the shaft 11.

In order to insure the application ofa rier 20 and has provision for a slight rocking movement relative thereto. The cross head is permitted to descend and seat the form and is raised at the completion of the pressing operation by a lever 21 pivoted to the frame at its lower end and connected to the cross head by a link 23. The lever 21. is provided with a cam roll 22 which engages with a rotary cam mounted upon the cam shaft 11. In order to lock the cross head in position during the pressing operation, a locking cam 25 is secured to a rock shaft 26 journaled in the frame of the machine above the form and is ar flanged to be swung inwardly over the cross head until it engages therewith and to be swung outwardly to allow the cross head to be raised. The cam is swung inwardly by a suitable spring (not shown) and is positively forced out of engagement with the cross head by a lever 27 provided with a cam roll engaging with a cam on the shaft 11 and connected to the rock shaft through a link 28 anda rocker arm 29.

The above construction has been only briefly described herein as it is substantially the same as the construction shown and described in the patent to Mayo, No. 881,47 8, lVIarch 10, 1908. lVith this type of machine as at present constructed the operator is unable to determine the exact amount of pressure which is exerted upon the shoe and lasts are frequently broken owing to the excessive pressure which is employed. In accordance with the present invention, the pressure exerted upon various classes of soles is regulated by a simple and compact adjusting mechanism and means are provided for indicating or registering the amount of pressure, thus enabling the ma chine to be readily adjusted to the most efficient position without danger of breaking the lasts.

The requisite pressure is obtained by the use of a compression spring received in a recess in the cross head 18 and interposed between the cross head and the form carrier 20, as shown clearly in Fig. 3. The spring is placed under any desired compression by an adjusting member 36 which passes loosely through the top of the cross head and is threaded into the form carrier at its lower end. In order to prevent a relative rotation of the adjusting member and form carrier a lug 33 is formed upon the carrier and a locking pin 34: is driven through the lug 33 and member 36. The upper end of the member '36 threadedly engages with a bevel gear 37 journaled in abracket 32 and provided with a collar 24 which normally bears against the upper face of the cross head. The member 36 and form carrier 20 are adjusted relative to the cross head 18 by rotating the bevel gear 37 through an intermeshing bevel 38 which is secured to an adjusting shaft 39 provided upon its outer end with a hand wheel 40. The total pressure which is exerted upon the sole is registered by an indicator mechanism comprising a spiral gear 41 secured to the shaft 39 and meshing with a spiral gear 42 secured to an indicator shaft i3. The indicator shaft 43 isjournaled in a slotted arm 44- formed upon the bracket '32 and provided with a series of indicating characters upon its front face. A traveler 45 having an indicating finger is threadedly connected to the indicator shaft and is arranged to move longitudinally and give the proper indications as-thesha ft l3 is rotated. In order to allow for a slight compression of the spring 35 when the-sole is put under pressure the bracket 32 is secured to the cross head 18 by bolt and slotconnections indicated at 46. Thus in operation the adjusting member and the bracket together with the parts carried thereby are moved bodily with relation to the cross head when the machine is put under pressure. In order to manipulate the adjusting mechanism readily the'machine is put under pressure compressing the spring 35 and raising the collar 24: and gear 37 from bearing upon the upper face of the cross head 18. This allows the gear to be rotate-l easily upon the upper end of the adjusting bolt 36 and regulate the initial compression of the spring 35.

While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims and may be changed 01' modified without departing from the broader features of the invention.

lVhat is claimed is p 1. A sole pressing machine having, in combination, a sole pressing form, a shoe supporting ack, means for relatively actuating the jack and form to exert pressure,

upon the sole of a shoe, means for regulating the pressure, and means for indicating the total pressure which is exerted upon the sole, substantially as described.

2. A sole pressing machine having, in combination, a shoe supporting jack, a sole pressing form, means for relatively actuating the jack and form, a spring for imparting the desired pressure to the form, means for adjusting the compression of the spring, and means for indicating the pressure exerted upon the sole of a shoe, substantially as described.

A sole pressing machine having, in combination, a shoe supporting jack,'a sole pressing form, means for relatively actuating the ack and form, a spring for imparting the desired pressure to the form, adjusting mechanism for regulating the compression of the spring, and an indicator actuated by the adjusting mechanism and arranged to register the pressure exerted upon the sole, substantially as described.

4:. A sole pressing machine having, in combination, a shoe supporting jack, a sole pressing form, means for relatively actuating the jack and form, a spring for imparting the desired pressure to the form, an ad justing shaft, connections between the adjusting shaft and spring, an indicator shaft having an indicating member connected thereto, and connections between the two shafts, substantially as described.

A sole pressing machine having, in combination, a shoe supporting jack, a sole pressing form, means for relatively actuating the ack and form, a form carrier, a cross head, a spring interposed between the cross head and form carrier, an adjusting member rigidly connected to the form carrier at its lower end, a gear threadedly mounted upon the upper end of the adjusting member, and means for rotating the gear to adjust the form carrier with relation to the cross head and vary the initial compression of the spring, substantially as described.

6. A. sole pressing machine comprising a sole pressing form, a form carrier, a cross head, a eompressioi'i s n'ing interposed be tween the form carrier and cross head, an adjusting member rigidly connected to the form carrier, mechanism for actuating the adjusting member an d a bracket supporting the mechanism and arranged to move relatively to the cross head when the sole is placed under pressure, substantially as described.

7. A. sole pressing machine having, in combination, a shoe supporting jack, a sole pressing rorm, a form carrier, a cross head, a spring interposed between the two, an ad justing rod secured to the form carrier and passing loosely through the cross head, a bevel gear threaded upon the upper end of the rod for adjusting the rod, an adjusting shaft provided with a bevel gear meshing with the first mentimied bevel gear, an in dicator shaft, gearing connecting said shaft to the adjusting shaft, and an indicating linger actuated by the indicator shaft, substantially as described;

EDWIN N. PREBLE.

Witnesses:

Cnns'rnn E. ltoenns, RUTH E. WARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. i 

